Line cookie sheet with aluminum foil. Cut bananas into coins and place on a lined cookie sheet. Freeze 5-6 hours, preferably overnight.

Remove hard, frozen banana chunks into the food processor and process until they start to turn creamy. This might take a while.

Add dark cocoa and SunButter, and process until fully incorporated into the frozen banana. The mixture will be creamy like soft serve ice cream.

You can eat as is or place in a container and freeze until hard. (I prefer the later.) Once frozen hard, scoop as you would regular ice cream and top as desired.

You can also make this into other flavors. If you want to make something like strawberry, leave out the cocoa and peanut (sun) butter. I find adding thawed strawberries or blueberries works better for making fruit flavored nice cream.